6 M Motor Actuators
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Y20EBD Valve Linkage for M100 Motor Actuators
Upright mounting of the motor actuator is recommended.
When valve mounting, do not mount below the horizontal plane of the
valve piping to prevent damage to the motor actuator if the valve leaks or
develops condensation.
Do not install the motor actuator in atmospheres with explosive vapors or
escaping gases, or where vapors having deteriorating properties might
attack the actuator’s metal parts.
Do not install where the ambient temperature of the surrounding area falls
below -40°F (-40°C) for non-spring return motor actuators, or
-35°F (-37°C) for spring return motor actuators. The maximum ambient
temperature of the surrounding area of the motor actuator should not
exceed 125°F (52°C).
Valve medium temperatures above 250°F (121°C) are permissible only if
the maximum ambient temperature at the motor actuator is less than 105°F
(41°C).
Use insulating washers furnished with the linkage kit for valve medium
temperature applications over 250°F (121°C).
Locate the motor actuator where the shaft and wiring terminals are
accessible.
The non-spring return M100 Actuator will hold its position if power is
removed. The spring return actuator will return to its zero position if
power is removed. Both types will hold their current position if the
control signal is satisfied.
Note: The spring return is intended only as a safety feature to drive the
actuator to its zero position in the event power is interrupted or
turned off.
There are three sections to the installation of the Y20EBD valve linkage
kit:
1. Configure and mount the yoke on the valve.
2. Mount the actuator and linkage assembly to the yoke and connect to
the valve.
3. Adjust the travel limits to actuate the over travel spring and seat the
valve.
Installation
Overview